Optochemical HCl gas detection using alkoxy substituted tetraphenylporphyrin-polymer composite films

Akiko Kubo, Heru Supriyatno, Chikara Tsutsumi, Yoshihiko Sadaoka, Katsuhiko Nakagawa, Kenzo Tabuchi

doi:10.1016/s0925-4005(01)00566-4

Description

Composite films of 5,10,15,20-tetra(4′-alkoxyphenyl)porphyrin (TP(OR)PH2) embedded in various polymer matrices were prepared and their optical responses to HCI gas were examined. The absorbance of the Soret and Q-bands for free-base TP(OR)PH2 is reversibly sensitive to sub-ppm levels of HCl. The glass transition temperature (Tg) of a matrix below the sensing temperature is more effective to the response and recovery behavior than above the sensing temperature. High sensitivity to sub-ppm levels of HCl was achieved by using a TP(OC4H9)PH2-BuMA composite film.

Journal

Sensors and Actuators B: Chemical

Sensors and Actuators B: Chemical 76 42-46, 2001-06-01

Elsevier BV

Details 詳細情報について

CRID: 1870865117898603136

DOI: 10.1016/s0925-4005(01)00566-4

ISSN: 09254005

Data Source

OpenAIRE

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